A list of efficient speakers at ~$5K a pair.

@paulcreed  Yes, I have come to the conclusion that at the stated $5000 budget a new speaker pair would likely be a sideways move. I will research the Ref 3a, thanks.

 To all, as I stated above, I plan on keeping the Fritz speakers for the time being. 

Klipsch Heresy IIIs with titanium driver mid horns, damped, sound great and better than the IVs I owned for a while. 2 REL subs (used, cheap, perfect).

OP thats a good move and Fritz speakers are very nice and he is I super nice guy, $5000 can buy a nice speaker in the used market there are a lot out there take your time and have fun don’t forget about Joseph Audio Pulsars if you have enough power.

@paulcreed  Yes, I have always considered the Pulsars as a speaker that would fit well into my room/system when I had a SS amp with the power to drive them. My current SS amp is the Pass XA 25 which I believe would be marginal at best. 

You have a very well curated system. Don't sell the Fritz before you find something you have heard in your home that you like more. You may miss the highs!